Coulomb string tension, asymptotic string tension, and the gluon chain

Journal Article · Sun Feb 01 00:00:00 EST 2015 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.91.034503· OSTI ID:1169449

Greensite, Jeff ^[1]; Szczepaniak, Adam P. ^[2]

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1. San Francisco State Univ., CA (United States). Dept Physics & Astronomy
2. Indiana Univ., Bloomington, IN (United States). Dept. of Physics and Center for Exploration of Energy and Matter

We compute, via numerical simulations, the non-perturbative Coulomb potential and position-space ghost propagator in pure SU(3) gauge theory in Coulomb gauge. We find that that the Coulomb potential scales nicely in accordance with asymptotic freedom, that the Coulomb potential is linear in the infrared, and that the Coulomb string tension is about four times larger than the asymptotic string tension. We explain how it is possible that the asymptotic string tension can be lower than the Coulomb string tension by a factor of four.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: FG03-92ER40711; FG0287ER40365; AC05-06OR23177; AC05- 06OR23177
• OSTI ID: 1169449
• Alternate ID(s): OSTI ID: 1180935
• Report Number(s): JLAB/THY-14-1925; DOE/OR-23177-3228; PRVDAQ; ArticleNumber: 034503; TRN: US1601154
• Journal Information: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 91, Issue 3; ISSN 1550-7998
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
coulomb potential
asymptotic string tension
string tension
gauge theory
quarks
antiquarks
gluons